Floor 1122 contains the lowest counterexample to the Goldbach Conjecture. It also contains a sign which claims that the aforementioned number is one that you should call and/or go to its floor for a good time.

Mathematicians have conjectured that this integer is also the lowest counterexample to something (that is, something more interesting than just "all integers are lower than the one found on Floor 1123"), but so far this conjecture has been neither proven nor disproven.

Floor 1125 is flooded with high concentrations of antihelium-4 (2p-bar, 2n, 2e+).

For some reason, this is neither unsafe nor amusing. Nobody wants to try to find out why. Half the occupants would quite like to investigate the lack of amusement, but for the possibility that the dangerous aspect reasserts itself. The others would seriously investigate the lack of danger, but are afeared that in doing so they would instead reinvoke the hilarity.

Floor 1128 has "We apologise for the inconvenience" written on the walls with huge blazing letters. Occasionally the fire alarm sets off and the sprinklers drench everything on the floor but the letters are impossible to extinguish. Perhaps this is the inconvenience they apologise for.

Anyhow, floor 1130 contains a poorly-taxidermized creature that appears to have the head of a bird, the tail of a rodent, the feet of a weasel, and the torso of an anteater. It's unclear whether it's fake or whether such creatures actually exist somewhere in the skyscraper. (It's got enough physical anomalies that a biological anomaly seems possible.)

Floor 1131 contains a poorly maintained vehicle that seems to have the chassis of a minivan, the wheels of a steam locomotive, the engine of an aircraft, the drivetrain of a ship and the parachutes of a rocket. Nobody knows if it works, because every bit of it is covered in oil residue. It is a rare example of "go faster" stripes atually achieving their goal of looking cool.

Floor 1142 contained ten game show hosts. Each is simultaneously hosting a game show (with the other nine hosts as the contestants) and competing in nine other game shows. A wide variety of game shows are represented, so contestants must simultaneously do nine of the following: complete an obstacle course, cook a meal, spin the Wheel of Fortune, identify what song is playing, answer brain teasers about an image, determine the correct prices for random objects, guess how 100 random people answered a survey, answer elementary school level questions, play charades, and answer random trivia questions.

Floor 1147 was designed by university students as part of an assignment. How it hasn't collapsed yet and how it was built in the first place despite lacking and handwavy documentation, obvious errors in most of the technical drawings and the use of materials chosen based on wild guesses is subject to extensive research by architects, civil engineers and cosmologists on the lookout for dark matter.

A gigantic, luxurious, and opulent buffet room. It contained huge amounts of every foods, drinks, desserts, etc. Despite if the room's appearance, however, everyone, even the poorest one, are allowed to eat here for free

A floor that contains a giant spherical cage. Inside the cage is an electricity generator. The cage is used for an experiment, where the cage will be spinned at a very high speed while charged with electricity.